C / C++ / MFC

////////////////////////////////////////
// in your document header file:

class YourDocument : public CDocument
{
   // normal stuff
   [...]

public:
   enum UpdateHints {ANY_CHANGE, SELECTED_ITEM_CHANGED, ...};
   void YourDocument::ChangeSelectedItem(ItemIdentifier item, CView* pRequestingView = NULL);
};

////////////////////////////////////////
// in your document implementafion file:

void YourDocument::ChangeSelectedItem(ItemIdentifier item, CView* pRequestingView /*= NULL*/)
{
   m_itSelected = item;
   UpdateAllViews(pRequestingView, SELECTED_ITEM_CHANGED, NULL);
}

void RightView::OnUpdate(CView* pSender, LPARAM lHint, CObject* pHint)
{
   switch (lHint)
   {
      default:
         Invalidate();
         break;
 
      case YourDocument::SELECTED_ITEM_CHANGED:
         OnSelectedItemChanged();
         break;
 
      // Other hints
      [...]
   }
}

void RightView::OnSelectedItemChanged()
{
   // Get selected item from document
   [...]
 
   // Update controls in view
   [...]
}

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

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